At t = 0.0 s, a truck is traveling east at a constant speed of s = 87.3 km/h. at an intersection d = 37.3 km ahead, a car is traveling north at constant speed of v = 53.1 km/h. what is the expression for the distance r between the truck and the car as a function of time. use variables from the problem statement for your equation
a) r = √((87.3t)² + (53.1t + 37.3)²)
b) r = 87.3t + 53.1t + 37.3
c) r = √((87.3t + 53.1t)² + 37.3²)
d) r = 87.3t - (53.1t + 37.3)